Questions And Answers - Krell Industries KRC-3 Owner's Reference Manual

QUESTIONS AND ANSWERS
Q. When I turn up the volume on the KRC-3 a loud hum is present from the
loudspeakers; what could it be?
A. Hum can be caused by several different disturbances. Check to make sure
all of the cables into and out of the KRC-3 are sound and making proper
contact. Make sure there are no power supplies or hum inducing
components on top or directly below the KRC-3.
You could also be experiencing a ground loop in the system. Put a 3 prong
to 2 prong AC adapter (cheater plug) on the KRC-3. This should eliminate
the hum. If the hum persists, you may need to repeat this procedure on
additional components in the system. Please contact your dealer or
equipment manufacturer before lifting the ground on any component.
Remember to always keep one major component grounded. If these
suggestions do not lead to a solution, please consult your dealer or KRELL.
Q. Can the KRC-3 be used to control more than one system?
A. Yes, the KRC-3 has both single-ended
and balanced outputs that can be
used simultaneously to control two different systems.
Q. When I select the B1 input on KRC-3, one channel seems to have less gain
than the other. Is something wrong with the preamplifier?
A. More than likely there is not a problem with the KRC-3. The balanced input
or output internal cable terminations could be incorrect. Locate the
channel of the system that appears to have less gain. Switch that channel's
input cables. If the problems now appears in the other channel, it is a
defective cable. If the problem remains in the original channel, check the
KRC-3 output cables using the same procedure. If it is not cable or source
related, call your dealer or KRELL.
Check to make sure there are no Balance LEDs illuminated. If there are,
correct the balance by pressing the balance control buttons on the remote
control until no LEDs are illuminated.
Q. When I use my surround processor, where should I set the volume on the KRC-3?
A. When using the KRC-3's Theater
Throughput capability, the system volume
control is performed by the surround sound processor. This eliminates the
need to predetermine a proper volume setting for the KRC-3 as the KRC-3's
level control is not active in this mode (See Optional Configurations page
for more information).
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